Active oxygen sodium percarbonate

Sodium percarbonate (PCS, NazCOa 1.5 H2O2) is not a true persalt but a simple addition compoimd and, consequently, is less storage stable, as is, than perborate (PBSl or PBS4). It has an active oxygen content of 15% (approximately equal to that of PBSl). Its solubility at 20°C is 120 g/L (i.e., about five times more soluble than PBS4). Its rate of dissolution, in the uncoated form, is about the same as that of PBSl, and its bulk density is somewhat higher (0.9-1.2 kg/L, depending on the method of manufacture). The carbonate liberated contributes to the alkalinity of the wash bath. 

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